JPH0635822Y2 - On-board attitude control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field) The present invention relates to an on-vehicle attitude control device capable of improving, for example, the rideability of an occupant.

(Prior Art) As a conventional on-vehicle attitude control device, for example, JP-A-57-10
There is one described in Japanese Patent No. 7937. This device changes the position and angle of a vehicle seat, a steering wheel, an outside mirror, an inner mirror, etc. according to the physique of a driver or driving conditions.

(Problems to be solved by the invention) By the way, in this type of on-vehicle attitude control device, the driving attitude of the driver is determined mainly by the on-vehicle equipment such as the vehicle seat.
The position and angle of the auxiliary equipment such as the outside mirror are determined according to the driving posture of the driver.

If the seat belt as a secondary vehicle accessory is worn before changing the vehicle seat as a primary vehicle accessory from the retracted posture to the driving posture, the occupant will feel uncomfortable such as pressure and rubbing. . That is, since tension is applied to the seat belt by the take-up spring, if the seat moves forward while the seat belt is worn, the belt presses the occupant and causes the belt to rub.

Therefore, the present invention can improve the rideability of the driver at least, and lock the seat belt withdrawal until the posture change to the driving posture of the seat is completed to prevent useless operation and discomfort. It is an object of the present invention to provide an on-vehicle attitude control device that can be operated.

(Means for Solving Problems) The on-vehicle attitude control device of the present invention is a main vehicle on-board equipment Q1 capable of changing its attitude from at least the retracted attitude to the driving attitude by the control of the drive means MO, and this on-vehicle on-board equipment Q1. Attitude detection means SC for detecting the attitude change of the auxiliary vehicle equipment Q2 for which an appropriate adjustment amount is determined according to the attitude of the main vehicle equipment Q1 and the attitude detection means SC
By the above, it is characterized in that it is provided with a restricting means for restricting the movement of the auxiliary equipment Q2 on the auxiliary vehicle until it is detected that the attitude of the auxiliary equipment Q1 on the main vehicle has been changed to the driving attitude.

(Operation) According to the configuration of the present invention, the control means monitors whether or not the posture change of the seat is completed by the signal from the posture detection means, and the regulation means monitors the movement of the seat belt until it is completed. regulate.

(Embodiment) The first and second embodiments of the present invention will be described below.

FIG. 2 is a circuit diagram in which an electronic control unit for an on-vehicle attitude control system according to the first embodiment of the present invention is constructed by using a microcomputer, and FIG. 3 is a flow chart based on the circuit of FIG. is there. A vehicle equipped with such an on-vehicle attitude control device is provided with a seat belt which is a sub-vehicle accessory Q2, a steering wheel SW which is a main vehicle accessory Q1, and a seat S. The seat S is configured so that its posture can be changed according to the passenger getting on and off.

Here, the microcomputer 1 as a control means will be described. It is a so-called general-purpose microcomputer in which a CPU, a ROM, and a RAM are configured in a one-chip LSI, and information required according to a program stored in the ROM is well known. Is read out, a predetermined process is performed, and an output signal is emitted.

To the input side port of the microcomputer 1, the engine key switch 3, the door switch 5, the manual adjustment switch 7 and the memory support switch 9 as the attitude storage means are connected. Further, to the input side port of the microcomputer 1, the steering tilt amount detecting sensor 11, the steering telescopic amount detecting sensor 13, the seat slide amount detecting sensor 15 and the seat lift amount detecting sensor 17 are connected. Seat slide amount detection sensor
15 corresponds to the posture detecting means SC in this embodiment.

On the other hand, relays 21, 23, 25, 27, 29, 31, 33, 35, 37 are connected to the output side ports of the microcomputer. The relays 21 and 23 are connected to a steering tilt motor 41 as a drive means MO for changing the attitude of the steering wheel, the relays 25 and 27 are connected to a steering telescopic motor 43 as the drive means MO, and the relays 29 and 31 are for a seat. Seat slide motor 45 as drive means MO for changing the posture
Further, the relays 33 and 35 are connected to a seat lift motor 47 as the drive means MO, and the relay 37 is connected to an electromagnetic solenoid 49 of the seat belt retractor shown in FIG.

The steering wheel SW is a motor 41 as shown in FIG.
The shaft 101 is driven back and forth to tilt the steering wheel SW, and the motor 43 is driven to move the shaft 102 back and forth to perform telescoping of the steering wheel SW.

In the seat S, when the lead screw 105 is rotated through the interlocking wire 103 and the worm gear 104 by driving the motor 45 as shown in FIG. 7, the slide outer 107 is fixed because the lead screw nut 106 is fixed. Are driven back and forth. In this seat S, the connecting pipe (not shown) is rotated by the motor 47 to rotate the coaxial side gear 109 as shown in FIG. 8, and the sector gear 111 rotates about the point C, so that the front seat Move the surface up and down. This movement is transmitted to the rear link 115 via the connecting link 113 and also raises / lowers the rear seat surface (see Nissan Service Weekly Report 517, page D-36).

The seat belt SB has a winding device, as shown in FIG.
The structure is as shown in the figure. The winding shaft 117 of the seat belt SB is given a rotational force in the winding direction shown by the arrow in FIG. 10 by a winding spring (not shown), and the seat belt SB relays the roll 119 to wind the winding shaft. 117
To be wound up. Gear-shaped latch plates 121 are provided at both ends of the winding shaft 117. Further, an electromagnetic solenoid 49 is provided on one wall of the base 122, and swings the latch piece 123 left and right around its shaft 125 by ON / OFF operation. Latch piece when swinging to the left in Fig. 10
123 engages with the teeth of the latch plate 121 and seat belt SB
Lock the drawer of. Swing to the right to unlock.

Therefore, the electromagnetic solenoid 49, the latch plate 121, and the latch piece 123 form a regulation unit RC that regulates the movement of the seat belt SB as the auxiliary vehicle equipment Q2.

The engine key switch 3 has a function as a dismounting operation detecting means for detecting a dismounting operation of the driver and a dismounting completion state detecting means for detecting a dismounting completion state of the driver. That is, the getting-off operation is detected when the engine key switch 3 is OFF, and the boarding completion state is detected when the engine key switch 3 is ON. Also, the door switch 5
Is configured to be turned ON / OFF in response to the opening / closing of the driver's seat side door, for example, and has a function as the entry / exit operation detecting means and the entry completion state detecting means together with the engine key switch 3.

The manual adjustment switch 7 comprises movable contacts 51, 53, 55, 57 and fixed contacts 59, 61, 63, 65, 67, 69, 71, 73. The movable contact 51 has fixed contacts 59 and 61, the movable contact 53 has fixed contacts 63 and 65, and the movable contact 55 has fixed contacts 67 and 69.
Reference numeral 57 has a configuration capable of being selectively connected to the fixed contacts 71 and 73, respectively. In addition, fixed contacts 59,61,63,65,67,69,71,7
3 corresponds to the relays 21, 23, 25, 27, 29, 31, 33, 35, respectively.

The storage instruction switch 9 includes a main switch 76, a first memory position switch 77, a second memory position switch 79, a third memory position switch 81, and a fourth memory position switch 83. 1st to 4th
The memory position switches 77, 79, 81, 83 are used to determine the on-vehicle postures such as the seat position and the steering wheel position during driving, in the first memory area, the second memory area, the third memory area and the fourth memory area of the microcomputer 1. It is configured to be stored separately in each.

The first to fourth memory position switches 76, 77, 79, 8
1,83 are composed of momentary open type switches, one end of which is grounded and the other end of which is connected to the microcomputer 1 through an inverter.

In addition to the first to fourth memory areas, the microcomputer 1 is also provided with a fifth memory area for storing the on-vehicle posture of the steering wheel SW and the seat S after the operation is completed, by operating the manual adjustment switch 7. have.

Reference numeral 85 in the figure is a power supply circuit.

The driver can arbitrarily adjust the on-vehicle attitude such as the seat position or the steering wheel position by turning on the engine key switch 3 and then manually operating the manual adjustment switch 7.

That is, when adjusting the vertical position of the steering wheel SW, for example, the movable contact 51 is connected to the fixed contact 59 or 61. Here, when the movable contact 51 is connected to the fixed contact 59, the signal from the fixed contact 59 is input to the microcomputer 1, and by this input, the microcomputer 1 outputs an output signal to turn on the relay 21 corresponding to the fixed contact 59. Give out. When the relay 21 is turned on by this output signal, the steering tilt motor 41 rotates in the forward direction to change the attitude of the steering wheel SW to the retracted position (up). On the other hand, when the movable contact 51 is connected to the fixed contact 61, the signal from the fixed contact 61 is input to the microcomputer 1, and the microcomputer 1 turns on the relay 23 by this input. When the relay 23 is turned on, the steering tilt motor 41 is reversely rotated to change the posture of the steering wheel SW to the driving position (down).

The steering tilt motor 41 is rotationally driven only while the movable contact 51 is continuously connected to the fixed contact 59 or 61, and the steering wheel SW keeps its posture in the neutral state.

When adjusting the advancing / retreating position of the steering wheel SW, by connecting the movable contact 53 to the fixed contact 63 or 65, the steering telescopic motor 43 is rotated in the forward / reverse direction via the microcomputer 1 and the relays 25 and 27, and the steering wheel is rotated. The posture of the wheel SW is changed between a retracted position (position away from the driver) and a driving position (position approaching the driver).

Next, when adjusting the front-rear position of the seat S, by connecting the movable contact 55 to the fixed contact 67 or 69, the seat slide motor 45 is rotated normally and reversely via the microcomputer 1 and the relays 29 and 31. The postures of the front and rear positions of S are changed between an operating position (forward position) and a retracted position (reverse position).

In addition, when adjusting the height position of the seat S, the movable contact
By connecting 57 to the fixed contact 71 or 73, the seat lift motor 47 is normally and reversely rotated through the microcomputer 1 and the relays 33 and 35, and the height of the seat S is increased to the operating position (up) and the retracted position (down). And change the posture.

In order to store the steering wheel position and the seat position adjusted by the driver in the microcomputer 1 by manually operating the manual adjustment switch 7 as described above, the storage instruction switch 9 can be operated. That is, for example, when the first memory position switch 77 is turned on after the main switch 76 is turned on, the steering tilt amount detection sensor 11 and the steering telescopic amount detection sensor 1
3. The vehicle-mounted posture is stored in the first memory area corresponding to the first memory position switch 71 by the pulse signals input from the seat slide amount detection sensor 15 and the seat lift amount detection sensor 17 to the microcomputer 1.

This memory counts the number of pulse signals from the steering tilt amount detection sensor 11, the steering telescopic amount detection sensor 13, the seat slide amount detection sensor 15, and the seat lift amount detection sensor 17 by a counter, and the count value of this counter is used as a reference. This is done by storing it as a value. Further, the on-vehicle posture of the steering wheel SW or the seat S is determined by the current count value of the counter for counting the number of pulse signals of the sensors 11, 13, 15, 17 even if the memory instruction switch 9 is not operated. The on-vehicle attitude can be stored in the fifth memory area of the microcomputer 1.

After that, the manual adjustment switch 7 is operated again to select another on-vehicle attitude, and this on-vehicle attitude is stored as follows. That is, by turning on the main switch 76 of the storage instruction switch 9 and then turning on, for example, the second memory position switch 79, in the same way as the operation of the first memory position switch 77, the on-board vehicle at this time The posture is stored in the second memory area. Since the on-vehicle attitude at this time is different from the on-vehicle attitude stored in the fifth memory area of the microcomputer 1, the on-vehicle attitude at this time is stored as the current position in the fifth memory area.

In this way, each memory position switch 77, 79, 83
By operating, the different on-vehicle attitudes can be stored in the corresponding memory areas of the microcomputer 1 and the latest on-vehicle attitude is stored in the fifth memory area of the microcomputer 1. be able to.

In the case of reproducing the on-vehicle posture stored in the first memory area to the fourth memory area of the microcomputer 1 by the above operation, the first to fourth memory position switches 77, 79, 81 of the memory instruction switch 9 are reproduced. The steering wheel SW or the seat S can be positioned in a desired on-vehicle posture by turning on a switch corresponding to a memory area to be reproduced of the 83.

The above is the on-vehicle postures of the steering wheel SW and the seat S, but the other on-vehicle postures of the reclining, the outside mirror, the inner mirror, etc. may be controlled.

In this device, the seat S is used as the main vehicle accessory and the seat belt SB is used as the auxiliary vehicle accessory, and the withdrawal of the seat belt SB is locked until the seat S is changed from the retracted posture to the driving posture, and the seat S retracted. The seat belt SB is restricted from being worn in the posture. For this reason, the seat S does not move forward to the driving posture while the seat belt SB is worn, and it is possible to prevent a feeling of pressure and rubbing.

Next, such a function will be described with reference to the flowchart shown in FIG.

First, generally explaining the flowchart of FIG. 3,
In step S1, it is determined whether the key is inserted in the engine key switch 3. If the key is not inserted, the process proceeds to step S2, and if the key is inserted, the process proceeds to step S4.

In step S2, it is determined whether the seat S is in the retracted posture. If it is in the retracted posture, the process returns to step S1, and if it is not in the retracted posture, the process proceeds to step S3.

In step 3, the counter value of the current pulse signal from the seat slide amount detection sensor 15 is compared with the pulse signal of the retracted posture stored in the memory, and the process proceeds to step S9.

In step S4, it is determined whether the seat S is in the driving posture. If you are in a driving posture, proceed to step S5,
If it is not in the driving posture, the process proceeds to step S7.

In step S5, the energization output of the relay 37 for the electromagnetic solenoid 49 is cleared. When the energization of relay 37 is cleared,
As described above, in FIG. 10, the electromagnetic solenoid 49 swings the latch piece 123 to the right to release the engagement with the latch plate 121. Therefore, the seat belt SB can be pulled out,
The occupant can wear the seat belt SB. When step S5 ends, the process proceeds to step S6, and the process proceeds to a normal memory and memory return routine.

In step S7, the operating current is output to the relay 37 of the electromagnetic solenoid 49, and the process proceeds to step S8. When the relay 37 is activated, the electromagnetic solenoid 49 in FIG.
Is swung to the left to engage with the latch plate 121, so that the withdrawal of the seat belt SB is locked and the occupant cannot wear the seat belt SB.

In step 8, the counter value of the current pulse signal from the seat slide amount detection sensor 15 is compared with the counter value of the pulse signal of the driving posture stored in the memory, and the process proceeds to step S9.

In step 9, the deviation between the seat slide amount memory counter value and the current counter value is determined. Deviation is 0
If so, go to step S11, otherwise go to step S11
Go to 10.

In step S10, the seat slide motor 45 relay 29,
A signal is output to 31, and the seat slide motor 45 is driven until the deviation in step S9 becomes zero.

In step S11, since it is not necessary to slide the seat S, the energization of the seat slide motor relays 29 and 31 is cleared, the process proceeds to slide S12, and the end flag is set.

In the first embodiment in which such control is performed, the control at the time of getting on and off is performed by the following procedures. If the engine key switch is plugged in when boarding, Yes in step S1.
Then, the process proceeds to step S4. Sheet S in step S4
Is still in the retracted posture, the determination is No, and the process proceeds to step 7. In step S7, the withdrawal of the seat belt SB is locked, so that the occupant cannot wear the seat belt SB. Next, in step S8, the current posture of the seat S and the stored driving posture are compared, and in step S9, these deviations are determined. Deviation is not 0, so step
Proceed to S10 to change the seat to the driving posture. Then, step S1 is repeated after step S1. In step S4,
If the seat S has already been changed to the driving posture, step
Proceeding to S5, the lock of the seat belt SB drawer is unlocked, and the seat belt SB can be worn.

When the passenger dismounts, the seat S is in the driving posture, and the key is removed from the engine key switch 3. Therefore, the step proceeds from S1 to S2. Since the seat S is in the driving posture, step
Go to S3. Here, the current posture of the seat S is compared with the stored retracted posture, and their deviations are determined in step S9. Since the deviation is not 0, the process proceeds to step S10 to change the seat S to the retracted posture. Then, step S1 is repeated after step S1. In step S2, since the seat S is changed to the retracted posture, the step returns to the start again.

Thus, according to the present embodiment, not only is the entry / exitability improved, but the seatbelt SB cannot be worn until the posture of the seat S is changed to the driving posture when the passenger is in the vehicle. There is no feeling of pressure due to the forward movement of S or discomfort due to the rubbing of the seat belt SB.

Next, a second embodiment of this invention will be described.

In this embodiment, the seat belt SB is used even when the posture of the seat S is changed.
It is possible to pull out a certain length of the item. A seat belt withdrawal amount detection sensor 19 is attached to the take-up shaft 117 of the seat belt take-up portion as a means for detecting the withdrawal amount of the seat belt SB. As the seat belt withdrawal amount detection sensor 19, a normal rotation angle sensor that generates a number of pulse signals according to the rotation angle is used. As shown in FIG. 4, the seatbelt withdrawal amount detection sensor 19 is various other detection sensors.
Similar to 11 to 17, it is connected to the input side port of the microcomputer 1, and a constant withdrawal amount of the seat belt SB described later is a fifth memory area of the microcomputer 1 as a counter value of a pulse signal according to the withdrawal amount. Memorized in.

The other structure of the second embodiment is the same as that of the first embodiment.

Next, the operation of the second embodiment will be described based on the flowchart shown in FIG. The flowchart of FIG. 5 is obtained by inserting steps S13 and S14 into the flowchart of the first embodiment shown in FIG.
1 to S12 are exactly the same as those in the first embodiment. Therefore,
In the description of each step, description of these same steps is omitted.

In step S13, the seat belt withdrawal amount detection sensor 19
The current withdrawal amount of the seat belt SB is calculated from the counter value of the pulse signal of, and the process proceeds to step S14.

In step S14, a constant seat belt withdrawal amount counter value stored in advance in the memory of the microcomputer 1 is compared with the current seat belt withdrawal amount calculated in step S13. Here, the fixed amount of seat belt withdrawal is the same as the amount of slide of the seat S. If the current withdrawal amount is equal to or larger than the certain value, the process proceeds to step S7. If it is less than or equal to a certain value, the process proceeds to step S8.

In the second embodiment in which such control is performed, control at the time of getting on and off is performed by the following procedures.

When the passenger gets in the vehicle, the key is inserted into the engine key switch 3 and the seat S is in the retracted posture. Therefore, the process proceeds to step S13 through step S1 and step S4, and then to step S14. Here, if the seat belt SB has been pulled out by more than the sliding amount of the seat S, the process proceeds to step S7, where the withdrawal of the seat belt SB is locked and further withdrawal is stopped. If the withdrawal amount of the seat belt SB is less than the sliding amount of the seat S, the step S7 is bypassed and the seat belt SB
When the drawer of is not locked, the process proceeds to step S8. Hereinafter, as in the first embodiment described above, steps S9 to S9
The process returns to the start through S10 or steps S11, S12, and steps S1, S4, S5, S6 are executed.

As described above, the second embodiment has the following effects in addition to the same effects as the first embodiment. I.e. step
If the determination in S14 is Yes, the seat belt SB has already been pulled out by the slide amount of the seat S, and if the determination is No, the withdrawal of the seat belt SB is not locked. In any case, in step S10, the occupant seat belt SB
The seat S can be moved forward while grasping. Generally, the seat belt SB has a shoulder position behind the right shoulder, and therefore, in order to wear the seat belt SB on the seat S in the driving posture, the body must be twisted to the right to grasp the seat belt SB, and then pull it out. I won't. However, according to this embodiment, when the seat S completes the movement to the driving posture as described above, the seed-held SB is already pulled out to some extent, so that the seed-helt SB can be easily mounted.

The control procedure at the time of getting off the vehicle is performed through the same steps as those in the first embodiment.

[Effect of the Invention] As is clear from the above, according to the configuration of the present invention, the withdrawal of the seat belt is restricted until the posture change of the seat from the retracted posture to the driving posture is completed. It will not be accidentally installed.
Therefore, the seat does not move from the retracted posture to the driving posture while wearing the seat belt, and the feeling of pressure by the seat belt can be prevented. Also, when the passenger dismounts, the seat is automatically changed to the retracted position by pulling out the key, and in this case, the seat belt is not regulated. It is possible to prevent feeling.

[Brief description of drawings]

1 is a block diagram of the present invention, FIG. 2 is a circuit diagram of a first embodiment of the present invention, FIG. 3 is a flow chart according to the circuit diagram of FIG. 2, and FIG. 4 is a second embodiment of the present invention. Circuit diagram, fifth
FIG. 6 is a flowchart according to the circuit diagram of FIG. 4, FIG. 6 is a perspective view of steering drive means, FIGS. 7 and 8 are perspective views of seat drive means, and FIG. 9 is a front view of a seat belt retractor. FIG. 10 is a sectional view taken along the line AA of FIG. S ... Seat, SW ... Steering wheel SC ... Attitude detection means, RK ... Regulation means MO ... Driving means

Claims (1)

[Scope of utility model registration request] 1. A seat capable of automatically changing its posture from at least a retracted posture to a driving posture under the control of a driving means, a seat belt for restraining an occupant, a posture detecting means for detecting a posture change of the seat, and the posture detection. An on-vehicle attitude control device comprising: a restricting means that restricts the withdrawal of the seat belt until it detects that the attitude of the seat is changed from the retracted attitude to the driving attitude.